Fuel Injection Mods
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I'll warn you that you're about to get 15 replies telling you to use the search function....did that when I was new on here. Bottom line from what I've learned on here is that if both your intake and exhaust are aftermarket you will need one to modify the fuel/air mix. If either your intake or exhaust are stock, you should be good without one.
I have the Cobra slip on and the stock air cleaner with a K&N filter and run without one just fine.
I have the Cobra slip on and the stock air cleaner with a K&N filter and run without one just fine.
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253 Posts
Be warned that i had put a cobra slipon and aftermarket filter on a bike without a tuner. Everything seemed to be fine, until a year down the road when i started having problems with the bike ideling, starting, knocking and overheating. I had ran the bike long enough that the engine was toast, i had to do a rebuild. I will never make the mistake of not spending a few hundred dollars on a tuner and in turn spending over a $1000. for the rebuild...afcop97 said:
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389 Posts
I haven't had any problems as yet. The airbox is stock, just the filter was changed out. I asked the question when I first joined the forum, and all I got was the usual snippy "use the search" replies. I did and didn't find anything to suggest needing to add it with the set up I had.
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2,531 Posts
All I can say is I have been running my set up for close to 40,000 miles this way and no problems. Cobra slip-on and modified air box with the back cut out and K&N filter. Just do what you can afford or what you think needs to be done is the best answer I guess. :-X
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389 Posts
My only difference is that I have not cut out the back of the air box. I do have a Cobra Fi2000R O2 on my wish list, but only as a nicety, not something I thought I needed. Only about 1500 miles on my bike so far.SmokenJOE said:
I didn't want to come off as a jackass, but I've seen some of the older members get a little abrasive with the new members and think they could go a little easier sometimes. All of us were/are new to Strykers, some of us were/are new to bikes at all, and all of us were/are new to the way things work on here. If someone had told me I NEEDED a fuel mod instead of just sending me to search through about 20 discussions that didn't answer my question I would probably have gotten one by now. However, I am new to bikes and went off the best I could find on here.
SmokenJoe, make it to Michigan and the first beer's on me.
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490 Posts
From what I have read, there were no undertones here from anyone. When I first started, it was a little overwhelming to me as well, and I have asked my fair share of repetitive questions as well. I did indeed find out that it is best for our bikes to have a fuel mod done if you have replaced the pipes and the stock air box, more O2 in, plus different pipes equals a need for a mod to be done. Not sure of the long term with the back of the stock air box cut out, but some things time will tell. I have appreciated all the feedback from all of you guys on here, and there is a huge amount of info on our bikes here. 
Many thanks for the answers so far.
The problem is CALIFORNIA and I do not see any answers relating to California.
For what I can find out any fuel modification module sold in California can only change mixtures when throttle is full wide open. Not at idle, not at cruise, not at partial throttle openings.
So back to the question, will a module do any good in CALIFORNIA??
Thanks again.
Bruce
aka Longrider at 396,872 miles
The problem is CALIFORNIA and I do not see any answers relating to California.
For what I can find out any fuel modification module sold in California can only change mixtures when throttle is full wide open. Not at idle, not at cruise, not at partial throttle openings.
So back to the question, will a module do any good in CALIFORNIA??
Thanks again.
Bruce
aka Longrider at 396,872 miles
Joined
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490 Posts
Maybe this may help, not sure though....
http://www.arb.ca.gov/msprog/motcycle/onrdmc.htm
"....Technological advances made in the past 15 years tocatalysts and engines can now significantly reduce motorcycle emissions. As a result, the ARB has adopted a new set of standards that will apply to 280cc and largermotorcycles starting in the 2004 model year withadditional reductions required in the 2008 model year. HC and oxides of nitrogen (NOx, the other of twoimportant smog-forming compounds) emissions arecombined into a single new standard that will give manufacturers additional flexibility to lower emissions andprovide motorcycles that meet consumer needs. HCplus N0x emissions is required to be reduced to 1.4g/km for the 2004 model year and 0.8 g/km for the2008 model year. This represents a significant reduction over the current standards while being feasibleand costeffective. It is important to note that these actions will not affect motorcycles produced prior to the 2004 model year, nor require the retrofitting of existing motorcycles to meet new standards. The ARB isalso discussing with manufacturers a proposal to offer an incentive plan encouraging the introduction of cleaner motorcycles prior to the 2008 model year.
Modifications to On-Road Motorcycles
Current California law does not permit modifications thatincrease emissions to 1978 or newer motorcycles. This would continue to apply to any motorcycles certified under the proposed new standards.".
http://www.arb.ca.gov/msprog/onroad/cert/hmc/2011/yamaha_m0030531_1304_0d3_hn.pdf for some tech info on the stryker, and one more: http://www.arb.ca.gov/msprog/onroad/cert/hmc/2013/yamaha_m0030561_1304_0d3_hn.pdf
It appears, if I understand correctly, you cannot make any FM mods to your bike (or any after 2004) in California.
http://www.arb.ca.gov/msprog/motcycle/onrdmc.htm
"....Technological advances made in the past 15 years tocatalysts and engines can now significantly reduce motorcycle emissions. As a result, the ARB has adopted a new set of standards that will apply to 280cc and largermotorcycles starting in the 2004 model year withadditional reductions required in the 2008 model year. HC and oxides of nitrogen (NOx, the other of twoimportant smog-forming compounds) emissions arecombined into a single new standard that will give manufacturers additional flexibility to lower emissions andprovide motorcycles that meet consumer needs. HCplus N0x emissions is required to be reduced to 1.4g/km for the 2004 model year and 0.8 g/km for the2008 model year. This represents a significant reduction over the current standards while being feasibleand costeffective. It is important to note that these actions will not affect motorcycles produced prior to the 2004 model year, nor require the retrofitting of existing motorcycles to meet new standards. The ARB isalso discussing with manufacturers a proposal to offer an incentive plan encouraging the introduction of cleaner motorcycles prior to the 2008 model year.
Modifications to On-Road Motorcycles
Current California law does not permit modifications thatincrease emissions to 1978 or newer motorcycles. This would continue to apply to any motorcycles certified under the proposed new standards.".
http://www.arb.ca.gov/msprog/onroad/cert/hmc/2011/yamaha_m0030531_1304_0d3_hn.pdf for some tech info on the stryker, and one more: http://www.arb.ca.gov/msprog/onroad/cert/hmc/2013/yamaha_m0030561_1304_0d3_hn.pdf
It appears, if I understand correctly, you cannot make any FM mods to your bike (or any after 2004) in California.
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253 Posts
Sweet find. On a side note i am attaching a link to cobra usa's page. On the top is a california model fuel processor. I hope the link works.
www.cobrausa.com/fuel_compare.php?m...yker&product_type= Motorcycle Fuel Management
www.cobrausa.com/fuel_compare.php?m...yker&product_type= Motorcycle Fuel Management
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